M2TS to MKV Converter
Convert M2TS to MKV online for free. Fast, secure, and high-quality conversion with no sign-up or software required.
Maximum file size is 1GB
How it works
Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.
What is an M2TS file?
The M2TS (MPEG-2 Transport Stream) file format is a high-definition digital video container format used for multiplexing audio, video, and other streams, primarily associated with the Blu-ray Disc Audio-Video (BDAV) container format. It is based on the MPEG-2 transport stream container and is used for structuring content on Blu-ray Discs and AVCHD camcorders (Sony/Panasonic). M2TS files typically contain video compressed using H.264/MPEG-4 AVC, VC-1, or MPEG-2 codecs, allowing for variable bitrates and high-resolution playback.
How to open an M2TS file
Windows usually supports M2TS playback natively through the Movies & TV app if the necessary codec extensions are installed. However, for reliable playback across macOS and Windows without codec errors, VLC Media Player is the standard solution as it natively handles the MPEG-2 TS encapsulation. High-end video editors like DaVinci Resolve and Adobe Premiere Pro also support M2TS import for editing camcorder footage.
M2TS Technical Info
- Full Name
- MPEG-2 Transport Stream
- Developed By
- Blu-ray Disc Association
- Initial Release
- 2006
- MIME Type
- video/mp2t
What is an MKV file?
The Matroska Video (MKV) file is an open-standard, free container format capable of holding an unlimited number of video, audio, picture, or subtitle tracks in one file. Unlike proprietary containers, Matroska is structured upon Extensible Binary Meta Language (EBML), allowing for significant flexibility and forward compatibility. It supports a vast array of codecs, including H.264, VP9, HEVC, AAC, Vorbis, and FLAC, and is particularly noted for its support of soft subtitles (SSA/ASS) and chapter entries, making it a standard for high-definition video distribution (HD) and anime fansubs.
How to open an MKV file
Native support for MKV is available in Windows 10/11 via the Movies & TV app and generally on Linux distributions. macOS requires third-party software, as QuickTime Player does not natively parse the Matroska container. The industry-standard solution for all operating systems is VLC Media Player, which includes built-in libraries for decoding the diverse codecs often encapsulated within MKV files. Alternative options include MPV and MPC-HC (Windows).
MKV Technical Info
- Full Name
- Matroska Video Container
- Developed By
- Matroska (non-profit)
- Initial Release
- 2002
- MIME Type
- video/x-matroska
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Purpose-built for speed, privacy, and breadth of format support.
Convert M2TS to MKV in seconds
Every M2TS to MKV conversion runs on our servers, so your device stays fast and the output quality stays intact.
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No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.
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Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.
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Developer API
Convert M2TS to MKV via API
Automate M2TS to MKV conversions in three steps: create a job, upload your file, then poll for the result.
# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tag": "m2ts-to-mkv",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "mkv"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.m2ts
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
-H "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.